Take your HARP SF game to the next level of excitement!HARP SF Xtreme expands the HARP SF system with:
A complete set of vehicular rules for both slower-than-light and faster-than-light travel, whether you fly at the speed of plot or like to crunch the numbers
An extensive catalogue of land, marine, air, space and hybrid vehicles to get your heroes from Alpha Centauri to Betelgeuse and everywhere else
Deck plans of the featured starships and interplanetary craft...
